arch/arm/mach-at91/include/mach/cpu.h

   1 /*
   2  * arch/arm/mach-at91/include/mach/cpu.h
   3  *
   4  *  Copyright (C) 2006 SAN People
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12
  13 #ifndef __ASM_ARCH_CPU_H
  14 #define __ASM_ARCH_CPU_H
  15
  16 #include <mach/hardware.h>
  17 #include <mach/at91_dbgu.h>
  18
  19
  20 #define ARCH_ID_AT91RM9200      0x09290780
  21 #define ARCH_ID_AT91SAM9260     0x019803a0
  22 #define ARCH_ID_AT91SAM9261     0x019703a0
  23 #define ARCH_ID_AT91SAM9263     0x019607a0
  24 #define ARCH_ID_AT91SAM9G20     0x019905a0
  25 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
  26 #define ARCH_ID_AT91CAP9        0x039A03A0
  27
  28 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  29 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  30 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  31
  32 #define ARCH_ID_AT91M40800      0x14080044
  33 #define ARCH_ID_AT91R40807      0x44080746
  34 #define ARCH_ID_AT91M40807      0x14080745
  35 #define ARCH_ID_AT91R40008      0x44000840
  36
  37 static inline unsigned long at91_cpu_identify(void)
  38 {
  39         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  40 }
  41
  42
  43 #define ARCH_FAMILY_AT91X92     0x09200000
  44 #define ARCH_FAMILY_AT91SAM9    0x01900000
  45 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  46
  47 static inline unsigned long at91_arch_identify(void)
  48 {
  49         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  50 }
  51
  52
  53 #ifdef CONFIG_ARCH_AT91RM9200
  54 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  55 #else
  56 #define cpu_is_at91rm9200()     (0)
  57 #endif
  58
  59 #ifdef CONFIG_ARCH_AT91SAM9260
  60 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  61 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  62 #else
  63 #define cpu_is_at91sam9xe()     (0)
  64 #define cpu_is_at91sam9260()    (0)
  65 #endif
  66
  67 #ifdef CONFIG_ARCH_AT91SAM9G20
  68 #define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
  69 #else
  70 #define cpu_is_at91sam9g20()    (0)
  71 #endif
  72
  73 #ifdef CONFIG_ARCH_AT91SAM9261
  74 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  75 #else
  76 #define cpu_is_at91sam9261()    (0)
  77 #endif
  78
  79 #ifdef CONFIG_ARCH_AT91SAM9263
  80 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
  81 #else
  82 #define cpu_is_at91sam9263()    (0)
  83 #endif
  84
  85 #ifdef CONFIG_ARCH_AT91SAM9RL
  86 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
  87 #else
  88 #define cpu_is_at91sam9rl()     (0)
  89 #endif
  90
  91 #ifdef CONFIG_ARCH_AT91CAP9
  92 #define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
  93 #else
  94 #define cpu_is_at91cap9()       (0)
  95 #endif
  96
  97 /*
  98  * Since this is ARM, we will never run on any AVR32 CPU. But these
  99  * definitions may reduce clutter in common drivers.
 100  */
 101 #define cpu_is_at32ap7000()     (0)
 102
 103 #endif